/* vi: set sw=4 ts=4: */ /* * posix_fadvise64() for ARM uClibc * http://www.opengroup.org/onlinepubs/009695399/functions/posix_fadvise.html * * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ #include <features.h> #include <unistd.h> #include <errno.h> #include <endian.h> #include <stdint.h> #include <sys/types.h> #include <sys/syscall.h> #include <fcntl.h> #ifdef __UCLIBC_HAS_LFS__ #if defined __NR_arm_fadvise64_64 /* Was named __libc_posix_fadvise64 for some inexplicable reason. ** google says only uclibc has *__libc*_posix_fadviseXXX, ** so it cannot be compat with anything. ** ** Remove this comment and one at the end after 0.9.31 */ /* This is for the ARM version of fadvise64_64 which swaps the params * about to avoid having ABI compat issues */ #define __NR___syscall_arm_fadvise64_64 __NR_arm_fadvise64_64 int posix_fadvise64(int fd, __off64_t offset, __off64_t len, int advise) { INTERNAL_SYSCALL_DECL (err); int ret = INTERNAL_SYSCALL (arm_fadvise64_64, err, 6, fd, advise, __LONG_LONG_PAIR ((long)(offset >> 32), (long)offset), __LONG_LONG_PAIR ((long)(len >> 32), (long)len)); if (!INTERNAL_SYSCALL_ERROR_P (ret, err)) return 0; if (INTERNAL_SYSCALL_ERRNO (ret, err) != ENOSYS) return INTERNAL_SYSCALL_ERRNO (ret, err); return 0; } /* weak_alias(__libc_posix_fadvise64, posix_fadvise64); */ #else int posix_fadvise64(int fd, __off64_t offset, __off64_t len, int advise) { return ENOSYS; } #endif #endif